Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

SMART-1 maps Humorum edge - where Highlands and Mare mix

27.04.2006


This sequence of images, taken by the advanced Moon Imaging Experiment (AMIE) on board ESA’s SMART-1 spacecraft, shows on area on the near side of the Moon, on the edge of the Mare Humorum basin.



AMIE obtained these raw images on 13 January 2006 from a distance ranging between 1031 and 1107 kilometres from the surface, with a ground resolution between 93 and 100 metres per pixel.

The imaged area is located at longitude 45.7º West and latitude between 30.5º and 24.5º South. The field of view of each single image is about 50 kilometres.


The flat lava plain in the upper right image is the floor of Mare Humorum. The bowl-shaped crater on top, cut by a fracture, is called ‘Liebig F’ and has a diameter of nine kilometres.

The Mare Humorum impact basin is 825 kilometres across. Its precise age could not be determined yet by previous lunar programmes, but geologic mapping suggest it could be around 3.9 thousand million years old – an age comprised between those of the Imbrium and Nectaris Basins. The Humorum basin is filled with a layer of basalt, likely thicker than three kilometres at its centre.

The Humorum basin, like several other lunar basins, was formed in a period which ended around 4.1 billion years ago. It was filled with mare material - basaltic flood eruptions caused by very large meteoroid impacts - only during the later Eratosthenian era, in a period comprised between 3.9 and 3.2 billion years ago. The western edge of the sea is marked by a network of cracks and clefts following the Rupes Liebig.

The three northern images include part of the flat darker area corresponding to the mare basalt filling the inner ring of the basin impact. A fresh small crater is surrounded by brighter deposits.

The top north image also shows giant lava tubes or rilles in the Mare. Some graben-lineated structures (a graben is an elongated and relatively depressed crustal block that between two fault systems) indicate the stress structures created during the multi-ring collapse, and refreshed by additional load deformation from the weight of later basalt fill.

It is possible to notice the landscape transition towards the most southern image typical of an old cratered highland. In the middle image the small craters are not very clear because the terrain has been partly covered by material ejected from the impact basin.

Bernard H. Foing | alfa
Further information:
http://www.esa.int/esaSC/SEMHWFOFGLE_index_0.html

More articles from Physics and Astronomy:

nachricht A tale of two pulsars' tails: Plumes offer geometry lessons to astronomers
18.01.2017 | Penn State

nachricht Studying fundamental particles in materials
17.01.2017 | Max-Planck-Institut für Struktur und Dynamik der Materie

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

Im Focus: How to inflate a hardened concrete shell with a weight of 80 t

At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).

Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

Nothing will happen without batteries making it happen!

05.01.2017 | Event News

 
Latest News

A big nano boost for solar cells

18.01.2017 | Power and Electrical Engineering

Glass's off-kilter harmonies

18.01.2017 | Materials Sciences

Toward a 'smart' patch that automatically delivers insulin when needed

18.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>